{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "from matplotlib import pyplot as plt\n",
    "from matplotlib_inline import backend_inline\n",
    "\n",
    "backend_inline.set_matplotlib_formats('svg')"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
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      "text/plain": [
       "<Figure size 640x480 with 1 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "data_lst = [1, 2, 3, 4]\n",
    "stock1 = [4, 5, 12, 6]\n",
    "stock2 = [10, 12, 5, 13]\n",
    "# 画2条折线\n",
    "plt.plot(data_lst, stock1)\n",
    "plt.plot(data_lst, stock2)\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
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      "text/plain": [
       "<Figure size 640x480 with 1 Axes>"
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     "metadata": {},
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   ],
   "source": [
    "# 设置折线图的格式\n",
    "plt.plot(data_lst, stock1, 'ro--', label='a')\n",
    "plt.plot(data_lst, stock2, 'b^--', label='b')\n",
    "# 设置标题、给x和y轴起名字\n",
    "plt.title('test')\n",
    "plt.xlabel('x')\n",
    "plt.ylabel('y')\n",
    "# 添加图例(查找每条线的label)\n",
    "plt.legend()\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [
    {
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      "text/plain": [
       "<Figure size 640x480 with 1 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "# 设置折线图的格式 fmt=颜色+点+直线\n",
    "# (r.-) 红色,小圆点,直线 \n",
    "# (go--) 绿色,大圆点,虚线 \n",
    "# (k+-.) 黑色,十字点,点虚线 \n",
    "# (c*:) 青色,星号,密集电线 \n",
    "# (bs) 蓝色,方块,不连线\n",
    "plt.plot(data_lst, stock1, 'ro--', label='a')\n",
    "plt.plot(data_lst, stock2, 'b^--', label='b')\n",
    "# 设置标题、给x和y轴起名字\n",
    "plt.title('test')\n",
    "plt.xlabel('x')\n",
    "plt.ylabel('y')\n",
    "# 设置x/y的坐标刻度\n",
    "plt.xticks([1,2,3,4])\n",
    "plt.yticks(np.arange(2,15,1))\n",
    "# 添加辅助线网格\n",
    "plt.grid()\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "metadata": {},
   "outputs": [
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      "text/plain": [
       "<Figure size 640x480 with 1 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "# 设置折线图的格式\n",
    "plt.plot(data_lst, stock1, 'ro--', label='a')\n",
    "plt.plot(data_lst, stock2, 'b^--', label='b')\n",
    "# 设置标题、给x和y轴起名字\n",
    "plt.title('test')\n",
    "plt.xlabel('x')\n",
    "plt.ylabel('y')\n",
    "# 设置x/y的坐标刻度\n",
    "plt.xticks([1, 2, 3, 4])\n",
    "plt.yticks(np.arange(2, 15, 1))\n",
    "# 添加辅助线网格\n",
    "plt.grid()\n",
    "# 调整图像显示的范围\n",
    "plt.xlim(2.5, 4.5)\n",
    "plt.ylim(1.5, 6.5)\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "metadata": {},
   "outputs": [
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      "text/plain": [
       "<Figure size 900x300 with 2 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "# matlab语法\n",
    "plt.figure(figsize=(9, 3))\n",
    "# 2行1列,画第一个图\n",
    "plt.subplot(211)\n",
    "plt.bar(data_lst, stock1)\n",
    "# 2行1列,画第二个图\n",
    "plt.subplot(212)\n",
    "plt.plot(data_lst, stock2, 'b^--')\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 24,
   "metadata": {},
   "outputs": [
    {
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      "text/plain": [
       "<Figure size 600x600 with 2 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "# 面向对象oop精确语法\n",
    "fig, axes = plt.subplots(2, 1, figsize=(6, 6))\n",
    "axes[0].bar(data_lst, stock1)\n",
    "axes[1].plot(data_lst, stock2, 'go--')\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {},
   "outputs": [
    {
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      "text/plain": [
       "<Figure size 600x600 with 3 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "# 画多个图 Figure控制x/y轴数值相等,背景为灰色\n",
    "fig, axes = plt.subplots(2, 2, figsize=(6, 6),\n",
    "                         facecolor='grey',\n",
    "                         sharex=True,\n",
    "                         sharey=True\n",
    "                         )\n",
    "# Figure对象添加整体大标题/注释\n",
    "fig.suptitle('all')\n",
    "fig.supylabel('all_y')\n",
    "fig.supxlabel('all_x')\n",
    "\n",
    "# 柱状图\n",
    "axes[0, 0].bar(data_lst, stock1)\n",
    "# 折线图\n",
    "axes[0, 0].plot(data_lst, stock1, 'r+-')\n",
    "# 折线图\n",
    "axes[0, 1].plot(data_lst, stock2, 'go--')\n",
    "ax = axes[1, 0]\n",
    "# 散点图\n",
    "ax.scatter(data_lst, stock2,\n",
    "           s=[10, 20, 50, 100],  # 大小\n",
    "           c=['r', 'b', 'c', 'y']  # 颜色\n",
    "           )\n",
    "axes[0, 0].set_title('a')\n",
    "axes[0, 1].set_title('b')\n",
    "ax.set_ylabel('c')\n",
    "# 删除最后一个坐标系\n",
    "axes[1, 1].remove()\n",
    "plt.show()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 33,
   "metadata": {},
   "outputs": [
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      "text/plain": [
       "<Figure size 600x600 with 4 Axes>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "# 画多个图 Figure控制x/y轴数值相等,背景为灰色\n",
    "fig, axes = plt.subplots(2, 2, figsize=(6, 6),\n",
    "                         facecolor='grey',\n",
    "                         sharex=True,\n",
    "                         sharey=True\n",
    "                         )\n",
    "# Figure对象添加整体大标题/注释\n",
    "fig.suptitle('all')\n",
    "fig.supylabel('all_y')\n",
    "fig.supxlabel('all_x')\n",
    "\n",
    "# 柱状图\n",
    "axes[0, 0].bar(data_lst, stock1)\n",
    "# 折线图\n",
    "axes[0, 0].plot(data_lst, stock1, 'r+-')\n",
    "# 折线图\n",
    "axes[0, 1].plot(data_lst, stock2, 'go--')\n",
    "ax = axes[1, 0]\n",
    "# 散点图\n",
    "ax.scatter(data_lst, stock2,\n",
    "           s=[10, 20, 50, 100],  # 大小\n",
    "           c=['r', 'b', 'c', 'y']  # 颜色\n",
    "           )\n",
    "axes[0, 0].set_title('a')\n",
    "axes[0, 1].set_title('b')\n",
    "ax.set_ylabel('c')\n",
    "# 删除最后一个坐标系\n",
    "axes[1, 1].remove()\n",
    "# 添加第四个3d图\n",
    "ax = fig.add_subplot(2, 2, 4, projection='3d',\n",
    "                     facecolor='grey')\n",
    "ax.stem(data_lst, stock1, stock2)\n",
    "ax.stem(data_lst, stock2, stock1,\n",
    "        linefmt='k--', basefmt='k--',\n",
    "        bottom=10, orientation='y')\n",
    "ax.plot_surface(np.array([1, 1, 4, 4]).reshape(2, 2),\n",
    "                np.array([2.5, 10, 2.5, 10]).reshape(2, 2),\n",
    "                np.array([0]*4).reshape(2, 2),\n",
    "                alpha=0.2, color='red')\n",
    "ax.plot_surface(np.array([1, 1, 4, 4]).reshape(2, 2),\n",
    "                np.array([10]*4).reshape(2, 2),\n",
    "                np.array([-2.5, 8, -2.5, 8]).reshape(2, 2),\n",
    "                alpha=0.2, color='yellow')\n",
    "# 设置背景颜色和透明度\n",
    "axes[0, 0].set_facecolor('yellow')\n",
    "axes[0, 0].patch.set_alpha(0.2)\n",
    "\n",
    "axes[0, 1].set_facecolor('red')\n",
    "axes[0, 1].patch.set_alpha(0.2)\n",
    "\n",
    "# 保持\"内容紧凑\"\n",
    "plt.tight_layout()\n",
    "plt.show()"
   ]
  }
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